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Strange streak
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Photo Details
jonogmun



Friend

Registered: October 2008
Location: Seltjarnarnes, Iceland
Posts: 22
users gallery
I took this photo a few years ago and have left it until last Saturday. When I enlarged it, I noticed this very pronounced vertical streak to the left of the mountain. The streak runs across the film (not lengthwise) and is not apparent in other frames.
I have not seen this before and would appreciate any suggestions to the cause.
Date: Tue, 10, April, 2012 Views: 2936
Filesize: 21.4kb, 187.3kb Dimensions: 700 x 508
Additional Info
Keywords: Streaking
Film make, size & rating:: Agfa APX100, 35mm
Film developer & temp:: Prescysol at 24C
Lens focal length, aperture & speed:: 45mm lens
Tripod used Y/N:: n
Paper:: MGIV
Paper developer & temp:: MGWT, 22C

Author
Thread  
Argentum

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Registered: September 2008
Location: Sceptred Isle
Posts: 3,066
Wed, 11, April, 2012 3:32pm

possibly caused by bending film when loading onto developing reel. i.e. the start of a film crease but I can't be sure.

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jonogmun

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Registered: October 2008
Location: Seltjarnarnes, Iceland
Posts: 22
Wed, 11, April, 2012 6:25pm

Hello Argentum, this had also crossed my mind but I cannot see any anomality on the film surface, it appers to be perfectly even.


Jon
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Argentum

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Registered: September 2008
Location: Sceptred Isle
Posts: 3,066
Wed, 11, April, 2012 6:47pm

well if it hasn't happened since then I think you'll just have to put it down to an unexplained anomaly. I rekon bending film will do this even if doesn't leave a crease mark in the film. Aother thing might be if it was touching the film in the spool when developing but you would have noticed it wasn't in its slot I think, and its a bit too regular a shape for that.
Or possibly dev or fix being poured into the tank ran down the film and gave extra dev or fix before the rest went in.
Since it was so long ago you probably don't remember.

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jonogmun

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Registered: October 2008
Location: Seltjarnarnes, Iceland
Posts: 22
Wed, 11, April, 2012 7:35pm

You are right, I don't remember if anything was unusual, I may have bent the film. I suppose that this one of the things that happen and you try to be more careful next time.
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Alfonso

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Registered: September 2009
Location: Basque Country, Spain
Posts: 88
Fri, 13, April, 2012 7:03am

I think the reason for the strike is the end of the film leaning on the previous turn, when in the reel. I had the same problem, both in 135 and 120 films, that disappeared when I switched to stainless steel reels, that have a bigger pitch (separation between spires).


Later, I'm at work now, I will upload a picture showing the same strike. Incidentally, it was also taken in Iceland, so that may be the reason ;-)

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Alfonso
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jonogmun

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Registered: October 2008
Location: Seltjarnarnes, Iceland
Posts: 22
Sat, 14, April, 2012 6:47pm

Hi Alfonso,
The band appears on a single frame not too far removed from the end of the film, so your suggestion is plausible. As I said, I need to be more careful.
Jon
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mono

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Registered: September 2008
Location: Germany
Posts: 803
Sun, 15, April, 2012 10:51am

You forgot to mention that you took a rainbow ;-)

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______________________ MonoArt - fine photographs Black & White & Analogue
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Alfonso

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Registered: September 2009
Location: Basque Country, Spain
Posts: 88
Mon, 16, April, 2012 6:32am

I have uploaded the picture I mentioned. As you see, it is very much the same, just bent to the other side.

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Alfonso
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